CID lt1/ lt4

CID lt1/ lt4

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CID lt1/ lt4

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$3,659.00

CID LT1/ LT4 Castings are the first choice for serious power. The high quality aluminum and robust architecture result in a stout top end offering. Match this with LME's custom CNC porting/valve job and you have a recipe that is sure to bring your F/I or N/A mill to the next level of performance. Standard features include CHE bronze valve guides, optimized pushrod clearance locations.

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Description

CID LT1/ LT4 Castings are the first choice for serious power. The high quality aluminum and robust architecture result in a stout top end offering. Match this with LME's custom CNC porting/valve job and you have a recipe that is sure to bring your F/I or N/A mill to the next level of performance. Standard features include CHE bronze valve guides, optimized pushrod clearance locations.

Engine Overview

Details

## By specifying your cam lift LME will assemble your cylinder heads with the proper spring installed height. This will result in optimal spring pressures and coil bind distance for maximum performance. Please include rocker ratio to ensure acuracy. (example: .650" lift with 1.8 ratio intake and exhaust)

*All Cylinder Heads Are Priced As ASSEMBLED Pairs

FLOW NUMBERS WITH 4.125" BORE @ 28" WATER
LIFT .100" .200" .300" .400" .500" .600" .700" .800"   Valve Size
INTAKE            385  385  403    2.125"
EXHAUST            280  285  285    1.600"

*Flowed with radius inlet intake/no pipe exhaust

Intake Volume (cc)

 

Rocker Config.

Factory

Exhaust Volume (cc)

 

Intake Port Config.

LT1/ LT4

Valve Guide Material

Manganese Bronze

Head Bolts/ Cyl.

6

Minimum Bore Size (in)

4.070

Valve Angle (degrees)

 


LME Standard Head Porting Process

  • Clean carbon from intake exhaust and chambers (used cores)

  • Through inspection

  • Debur sharp edges

  • Valve guide clearance measured and adjusted for application

  • CNC ported intake exhaust and chambers

  • Competition valve job

  • Valve job hand blended into ports

  • Combustion chambers measured and adjusted for application

  • Meticulous final cleaning of cylinder head and components

  • Intake valves back cut with optimal angle for application

  • Heads assembled and spring pressure set up for specific cam lifts/application

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